FW & SW Testing & Reagents

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API 5 in 1 Aquarium Test Strips
API 5 in 1 Aquarium Test Strips ('317163080337)

Aquarium Pharmaceuticals 5 in 1 Test Strips test aquarium water levels for optimal health! This master test kit allows you to simplify your testing routine. These strips can be dipped directly into your aquarium, no test tubes or separate samples are required.

  • 5-in-1 aquarium water tester - pH, NO2, NO3, KH, GH
  • Use with Freshwater and Saltwater aquariums
  • Easy to read color charts just dip and read

Highly precise color charts make it easy to determine aquarium levels to keep your fish healthy and thriving. Test for pH, nitrite, nitrate, general hardness and carbonate hardness all on one strip without multiple test tubes.

Range for pH is: 6.4, 7.2, 7.6, 8.0, 8.4.
Range for total hardness is: 0, 25, 50, 120, 250, 425.
Range for alkalinity is: 0, 80, 120, 180, 240, 300.
Range for nitrite is: 0, 0.5, 1.0, 3.0, 5.0, 10.0.

API 5 in 1 Aquarium Test Strips - 4 Strips
$13.70
Tetra EasyStrips Complete Kit
Tetra EasyStrips Complete Kit ('46798195443)

Tetra EasyStrips Ammonia Aquarium Test Strips provide, fast, accurate and easy testing for both fresh and saltwater aquariums. No vial is needed; just dip in the water for medical and scientific quality results in 10 seconds!

  • Kit includes 25 Ammonia Test Strips and 25 6-in-1 Test Strips
  • Quick and easy, just dip and read
  • Medical and scientific quality

Each kit contains 25 ammonia strips and 25 6-in-1 strips that provide complete testing of chlorine, nitrite, nitrate, alkalinity, hardness, and pH.

Tetra EasyStrips Complete Kit - 25 Ammonia Strips & 25 - 6 in 1 Strips
$37.26
Tetra EasyStrips 6 in 1 Ammonia Aquarium Test Strips
Tetra EasyStrips 6 in 1 Ammonia Aquarium Test Strips ('46798195436)

Tetra EasyStrips 6-in-1 Aquarium Test Strips provide complete, all-in-one testing in just 60 seconds. Each strip performs medical and scientific quality tests for pH levels, chlorine, hardness, and harmful toxins. EasyStrips are fast, accurate, easy to read, and suitable for both fresh and saltwater aquariums.

  • Complete, all-in-one testing for aquarium water
  • 60 second check of chlorine, nitrite, nitrate, alkalinity, hardness and pH
  • Medical and scientific quality results

Note: Does not test ammonia.

Tetra EasyStrips 6 in 1 Ammonia Aquarium Test Strips - 100 Pack
$52.02
Tetra EasyStrips 6 in 1 Ammonia Aquarium Test Strips
Tetra EasyStrips 6 in 1 Ammonia Aquarium Test Strips ('46798195429)

Tetra EasyStrips 6-in-1 Aquarium Test Strips provide complete, all-in-one testing in just 60 seconds. Each strip performs medical and scientific quality tests for pH levels, chlorine, hardness, and harmful toxins. EasyStrips are fast, accurate, easy to read, and suitable for both fresh and saltwater aquariums.

  • Complete, all-in-one testing for aquarium water
  • 60 second check of chlorine, nitrite, nitrate, alkalinity, hardness and pH
  • Medical and scientific quality results

Note: Does not test ammonia.

Tetra EasyStrips 6 in 1 Ammonia Aquarium Test Strips - 25 Pack
$21.06
Tetra EasyStrips Ammonia Aquarium Test Strips
Tetra EasyStrips Ammonia Aquarium Test Strips ('46798195405)

Tetra EasyStrips Ammonia Aquarium Test Strips are ideal for both fresh and saltwater aquariums. These strips deliver medical and scientific quality tests, with no vials or reagents. Accurate, fast and easy results in just 10 seconds!

  • Quick results in just 10 seconds
  • No vial needed, just dip and read
  • Medical and scientific quality

Ammonia is a highly toxic byproduct of organic waste, and can lead to serious health issues if allowed to accumulate in the fish tank. Regular ammonia testing is a very important part of regulating and maintaining a healthy aquatic environment, especially in heavily populated aquariums.

Tetra EasyStrips Ammonia Aquarium Test Strips - 25 Pack
$20.78
API Nitrite NO2 Test Kit FW & SW
API Nitrite NO2 Test Kit FW & SW ('317163001264)

Nitrite NO2 - Test Kit for Fresh Water / Salt Water monitorS nitrite to help prevent fish loss. Fast, accurate and easy-to-use. This Fresh Water Nitrite Test Kit contains dropper bottle, test solution, easy-to-read instructions, color chart and glass tube with lid for 180 tests for nitrite level from 0 to 5 ppm.

  • Monitors nitrite to help prevent fish loss
  • Suitable for fresh and saltwater
  • Use for regular, essential nitrite monitoring

Aquarium Pharmaceuticals Fresh Water Nitrite Test Kit reads total nitrite (NO2) levels in parts per million (ppm) from 0 ppm to 5 ppm. Regular testing for nitrite is an essential part of routine aquarium maintenance.

Aquarium water should be tested for nitrite every other day when the aquarium is first set up. In established aquariums, test for nitrite weekly to make sure the nitrite level does not rise.

API Nitrite NO2 Test Kit FW & SW - 180 Tests
$19.08
API pH High Range Test Kit FW & SW
API pH High Range Test Kit FW & SW ('317163001271)

Aquarium Pharmaceuticals' High Range pH Test Kit helps you ensure a healthy environment for your fish in both fresh and saltwater aquariums. Proper pH maintenance is essential to the health of many common aquarium fish.

  • Monitor high pH ranges to maintain African cichlid, marine and goldfish aquariums
  • Tests pH levels from 7.4 to 8.8
  • Suitable for fresh and saltwater aquariums

Kit measures pH 7.4 - 8.8.

API pH High Range Test Kit FW & SW - 160 Tests
$15.14
API Freshwater  PH Kit Mini
API Freshwater PH Kit Mini ('317163001288)

Aquarium Pharmaceuticals Fresh PH Mini Kit contains dropper bottle for accurate dispensing of liquid test solution, easy to read instructions and color chart, glass tube and lid.

  • Monitor pH to maintain healthy freshwater conditions
  • Contains dropper bottle for accurate dispensing of liquid test solution
  • For freshwater

Easily and accurately measure the pH level in your freshwater aquarium from 6.0 to 7.6 ppm.

API Freshwater PH Kit Mini - 250 Tests
$14.12
API pH Test & Adjuster Kit
API pH Test & Adjuster Kit ('317163020296)

Aquarium Pharmaceuticals pH Test and Adjuster Kit monitors your aquarium water pH with extreme accuracy, and includes API pH UP and pH DOWN to perform necessary adjustments after testing. This 3 bottle kit is suitable for freshwater aquariums.

  • Monitor and adjust pH to maintain healthy freshwater conditions
  • Includes pH UP and pH DOWN
  • Fast, accurate and easy-to-use kit

Fast, accurate and easy-to-use kit contains dropper bottle, test solution, easy-to-read instructions, color chart and glass tube with lid for 250 tests.

Tests pH levels from 6 0 to 7.6 Includes 37 ml pH UP and pH DOWN.

API pH Test & Adjuster Kit - 250 Tests
$20.38
API Replacement Test Tubes
API Replacement Test Tubes ('317163010327)

Replacement box of 24 test tubes and caps by Aquarium Pharmaceuticals. For use in all Aquarium Pharmaceuticals water test kits where the original tube has been lost or damaged.

  • Includes 24 test tubes and caps
  • Use for Aquarium Water Test Kits
  • Use when original tube has been lost or damaged
API Replacement Test Tubes - 24 Test Tubes with Caps
$36.18
API Ammonia Test Strips
API Ammonia Test Strips ('317163040331)

Aquarium Pharmaceuticals Aquarium Ammonia Test Strips. Test the ammonia levels in your aquarium for optimal health! Testing your water quality can be complicated, but test strips can help you simplify your testing routine.

  • Ammonia aquarium test strips
  • Tests NH3 and NH4
  • Measures ammonia in one easy step

These strips can be dipped directly into your aquarium: no test tubes or separate samples are required. Highly precise color charts make it easy to determine aquarium levels to keep your fish healthy and thriving.

Monitor toxic ammonia levels easily to maintain fish health.

API Ammonia Test Strips - 25 Strips
$26.32
API pH Test Strips
API pH Test Strips ('317163060339)

Aquarium Pharmaceuticals pH Test Strips. Test your aquarium water for pH levels for optimal health! Testing your water quality can be complicated, but test strips can help you simplify your testing routine.

  • pH aquarium test strips
  • Tests wide range of pH
  • Measures pH in one easy step

These strips can be dipped directly into your aquarium: no test tubes or separate samples are required. Highly precise color charts make it easy to determine aquarium levels to keep your fish healthy and thriving.

These strips test a wide range of pH levels in freshwater and saltwater aquariums.

API pH Test Strips - 25 Strips
$20.94
API 5 in 1 Aquarium Test Strips
API 5 in 1 Aquarium Test Strips ('317163070338)

Aquarium Pharmaceuticals 5 in 1 Test Strips test aquarium water levels for optimal health! This master test kit allows you to simplify your testing routine. These strips can be dipped directly into your aquarium, no test tubes or separate samples are required.

  • 5-in-1 aquarium water tester - pH, NO2, NO3, KH, GH
  • Use with Freshwater and Saltwater aquariums
  • Easy to read color charts just dip and read

Highly precise color charts make it easy to determine aquarium levels to keep your fish healthy and thriving. Test for pH, nitrite, nitrate, general hardness and carbonate hardness all on one strip without multiple test tubes.

Range for pH is: 6.4, 7.2, 7.6, 8.0, 8.4.
Range for total hardness is: 0, 25, 50, 120, 250, 425.
Range for alkalinity is: 0, 80, 120, 180, 240, 300.
Range for nitrite is: 0, 0.5, 1.0, 3.0, 5.0, 10.0.

API 5 in 1 Aquarium Test Strips - 25 strips
$25.52
Seachem pH Alert for Freshwater
Seachem pH Alert for Freshwater ('116002004)

Seachem pH Alert Reader is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you shifts to in pH levels between 5.8 and 8.5.

  • No strips, no tests, just constant readings
  • Detects pH shifts anytime for 3-6 months
  • Small and unobtrusive
  • For freshwater use only

DIRECTIONS: Simply place Sea Chem pH Alert Reader visibly anywhere in the aquarium or filter. Its that easy. No chemicals or test procedures are required. When first put in service, response time will be about 30 minutes. Thereafter, pH shifts will register within ten minutes. The life of the pH Alert Reader sensor may vary depending on a variety of tank parameters. A replacement sensor is included to ensure effectiveness for 3 to 6 months. Sensor exhaustion is indicated by a visible fading or washing out of sensor color.

Seachem pH Alert for Freshwater - pH Test Kit (Lasts 3-6 Months)
$14.30
API 5 in 1 Aquarium Test Strips
API 5 in 1 Aquarium Test Strips ('317163160336)

Aquarium Pharmaceuticals 5 in 1 Test Strips test aquarium water levels for optimal health! This master test kit allows you to simplify your testing routine. These strips can be dipped directly into your aquarium, no test tubes or separate samples are required.

  • 5-in-1 aquarium water tester - pH, NO2, NO3, KH, GH
  • Use with Freshwater and Saltwater aquariums
  • Easy to read color charts just dip and read

Highly precise color charts make it easy to determine aquarium levels to keep your fish healthy and thriving. Test for pH, nitrite, nitrate, general hardness and carbonate hardness all on one strip without multiple test tubes.

Range for pH is: 6.4, 7.2, 7.6, 8.0, 8.4.
Range for total hardness is: 0, 25, 50, 120, 250, 425.
Range for alkalinity is: 0, 80, 120, 180, 240, 300.
Range for nitrite is: 0, 0.5, 1.0, 3.0, 5.0, 10.0.

API 5 in 1 Aquarium Test Strips - 100 Strips
$47.60
API Freshwater Master Test Kit
API Freshwater Master Test Kit ('317163010341)

API Freshwater Master Test Kit is a complete test kit for testing tap and aquarium water. Tests five different potentially dangerous water conditions.

  • Water Test Kit for Freshwater Aquariums
  • Tests: pH, ammonia, nitrite, nitrate and high range pH
  • Includes: computer-analyzed laminated color cards, instruction booklet, 4 test tubes, a holding tray and test tube rack.
  • Over 800 tests per kit

The Freshwater master test kit is a fast, easy, and accurate test kit. It provides information on how to perform each test, how often to perform the tests, what the test results mean, and how to correct any unsafe water conditions that may be detected.

The kit is complete for testing tap water and aquarium water. It includes pH (6.0 to 7.6), high range pH (7.4 to 8.8), ammonia, nitrite and nitrate tests. The kit also includes an instruction booklet complete with information on water testing, water resistant computer calibrated color charts, test solution bottle for the five freshwater tests, and four glass test tubes with snap-tight caps in holders.

API Freshwater Master Test Kit - Over 800 Tests Per Kit
$60.50
API Carbonate Test Kit - Fresh & Saltwater
API Carbonate Test Kit - Fresh & Saltwater ('317163010594)

Aquarium Pharmaceuticals Fresh/Salt Water Carbonate Test Kit measures carbonate hardness, the measure of carbonate and bicarbonate concentrations in the water.

  • Carbonate hardness test kit
  • Monitor KH to prevent pH problems
  • For freshwater aquariums

APIs carbonate hardness (KH) of aquarium water should be tested frequently, since water with a low KH is subject to rapid shifts in PH, greatly stressing fish and making them vulnerable to disease.

The proper KH levels is an important part of water quality and is necessary for the health of fish and the development and growth of aquarium plants. Kit contains dropper bottle for accurate dispensing of test solution, easy to read instructions and color chart, non-staining glass test tube with snap-tight cap.

API Carbonate Test Kit - Fresh & Saltwater - Carbonate Test Kit
$13.24
API Phosphate Test Kit
API Phosphate Test Kit ('317163120637)

Aquarium Pharmaceuticals Phosphate Test Kit allows you to easily and accurately measure the phosphate level and maintain a healthy aquarium or pond. It does 150 tests.

  • High phosphate leads to algae growth
  • Helps maintain clear and healthy water
  • For fresh and saltwater

Why test your phosphate levels Well, phosphate can enter your aquarium through tap water, fish waste and decaying organics such as uneaten food or dead algae. As phosphate increases so does your chance of having unsightly algae and green water blooms. In salt water, phosphate can also inhabit the growth of corals and other reef building organisms.

Kit contains: two dropper bottles for accurate dispensing of test solutions, easy to read instructions and color charts, one non-staining glass test tube with snap-tight cap.

Range is as follows for freshwater and saltwater: 0.0 PPM, 0.5 PPM, 1.0 PPM, 2.0 PPM, 5.0 PPM, 10.0 PPM.

API Phosphate Test Kit - 150 Tests Liquid
$23.16
API Copper Test Kit
API Copper Test Kit ('317163120651)

Aquarium Pharmaceuticals' Copper Test Kit tests copper levels in water from 0 to 4 ppm, and measures both free and chelated copper. Always monitor aquarium copper levels when medicating. For use in Freshwater or Saltwater Aquariums or Ponds.

  • The accurate way to test aquarium quality
  • Tests copper levels from 0 to 4 ppm
  • Suitable for fresh and saltwater
API Copper Test Kit - 90 Tests Liquid
$17.86
API Calcium Test Kit
API Calcium Test Kit ('317163120699)

Aquarium Pharamceuticals Calcium Test Kit Liquid allows you to easily and accurately measure the calcium level and maintain a healthy aquarium.

  • CA2+ test kit
  • Monitor calcium for healthy coral growth
  • For saltwater

Monitoring calcium levels is essential for keeping a successful reef aquarium. Reef organisms use calcium to build a calcium carbonate skeleton. Over time, as the calcium in the water is utilized, the calcium level will gradually drop. Calcium must be present for corals to grow.

Calcium Test Kit Liquid contains: two dropper bottles for accurate dispensing of test solutions, easy to read instructions and a color chart, a non-staining glass test tube with snap-tight cap.

API Calcium Test Kit - Calcium Test Kit
$18.58
API Saltwater Master Test Kit
API Saltwater Master Test Kit ('317163134016)

The API Saltwater Master Test Kit for marine aquariums contains everything you need to measure the most important levels in your water with scientific accuracy. Professional-grade droplet tests are fast, easy to use, and the most reliable way to measure your waters chemistry.

  • Measures the most important aquarium levels
  • Tests high range pH, ammonia, nitrite and nitrate levels quickly
  • Scientifically accurate for professional results

Testing your tank water regularly is crucial for protecting your valuable fish from toxicity and other dangerous water conditions (especially ammonia and nitrite). This kit includes step-by-step instructions on how to perform each test, how to interpret the results, and how to correct unsafe water conditions.

Made in the USA.

Kit Includes:
6 Test Bottles for:
-High range pH (7.4-8.8)
-Ammonia (NH3/NH4+)
-Nitrite (NO2-)
-Nitrate (NO3-)
Instructions (in English, Spanish and French)
4 glass test tubes
Color charts

API Saltwater Master Test Kit - 550 Tests
$63.58
API Reef Master Test Kit
API Reef Master Test Kit ('317163134023)

The API Marine Reef Master Test Kit tests the most important aquarium levels. Tests Calcium, Carbonate hardness, phosphate and Nitrate levels quickly and accurately. Calibrated specifically for reef aquariums keep your reef thriving and beautiful.

  • Test Reef Aquarium water levels quickly and accurately
  • Test Calcium, Carbonate hardness (KH), Phosphate and Nitrate
  • Include 7 liquid test solutions, Instuction booklet, 4 glass test tubes and 2 color charts
API Reef Master Test Kit - Reef Master Test Kit
$64.00
API Nitrate Test Kit Fresh & Salt Water
API Nitrate Test Kit Fresh & Salt Water ('317163000182)

Nitrate buildup in aquariums is often an indicator of declining water quality. High levels of nitrate are frequently associated with poor fish health, algae growth, and a build-up or organic pollutants. Up to 90 tests with this API Kit.

  • Two dropper bottles for accurate dispensing of test solutions
  • Easy-to-read instructions and color chart
  • Non-staining glass test tube with snap-tight cap
  • Aquarium Pharmaceuticals Fresh And Salt Water Nitrate Test Kit measures nitrate (NO3) in freshwater and saltwater aquariums. The enclosed instruction booklet will tell how to test for nitrate, what the results mean and how to improve water quality and fish health.

    Fast, easy and accurate. Reads 0 to 160 mg/L or parts per million (ppm) of nitrate. Child resistant safety caps. The Fresh And Salt Water Nitrate Test snap-tight cap.

    API Nitrate Test Kit Fresh & Salt Water - Nitrate Test Kit FW & SW
    $22.08
    API Ammonia Test Kit Fresh & Salt Water
    API Ammonia Test Kit Fresh & Salt Water ('317163000861)

    The API Ammonia Test Kit measures ammonia levels in both fresh and saltwater aquariums. Ammonia, the number one killer of tropical fish, is continually produced in the aquarium from fish waste, decomposing plants and uneaten fish food.

    • Ammonia NH3/NH4+ test kit
    • Monitors toxic ammonia to help prevent fish loss
    • For fresh and saltwater aquariums

    Ammonia in the aquarium will damage delicate gill membranes and prevent fish from carrying on normal respiration. High levels of ammonia quickly lead to fish death. Even trace amounts can stress fish, suppressing their immune systems and thereby increasing the likelihood of disease and subsequent fish loss.

    This fast, accurate and easy-to-use kit contains: 2 dropper bottles, test solutions, easy-to-read instructions, color chart and glass tube with lid. Provides 130 tests for ammonia levels from 0 to 8 ppm.

    API Ammonia Test Kit Fresh & Salt Water - Ammonia Test Kit FW & SW
    $23.94
    Seachem Ammonia Alert
    Seachem Ammonia Alert ('116001007)

    Seachem Ammonia Alert is an innovative color device for continuously detecting and monitoring free ammonia in aquariums. A sensor changes from yellow to green to blue, relative to the ammonia concentration in the water. Seachem Ammonia Alert detects less than 0.05 mg/L (ppm) free ammonia and alerts you before fish show any signs of stress. It lasts over a year and replacement sensors are available.

    • Easy visual gauge to monitor ammonia in your reef or fish tank
    • Use in saltwater or freshwater aquariums
    • Provides 1 year of ammonia detection

    In the absence of free ammonia the unit will assume a yellow or faint yellow-green color. It is normal for the dry sensor to have a greenish hue. It may take up to a few days for a dry sensor to equilibrate with the water. No sampling of water or test procedures are required. The presence of the free ammonia is detectable continuously with a response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about 4 hours to register a SAFE reading.

    Seachem Ammonia Alert - Ammonia Test Kit
    $14.90
    Seachem One Year Combo Alert
    Seachem One Year Combo Alert ('116000130)

    Seachem One Year Combo Alert uses Seachem water sensor technology to continuously monitor ammonia and freshwater pH in your aquarium for an entire year, no tests or strips required. All you have to do is hang it in your tank!

    • Continuous freshwater pH and ammonia readings
    • No strips, no tests, just constant readings
    • Easy monitoring - just hang in your tank

    Ammonia Alert: The sensor automatically detects free ammonia at levels less than 0.05 mg/L (ppm) and alerts you to the presence of the primary killer of fish before it reaches hazardous levels and causes signs of stress. In the absence of free ammonia the sensor will assume a yellow color, and will move to green and blue as more ammonia is detected. Ammonia is detected continuously with a response time of just 15 minutes, allowing you to respond immediately and avoid further increases. Ammonia Alert lasts over 9 times as long as competing products, and is only about half the size.

    pH Alert: pH is constantly monitored, with a sensor that alerts you to shifts in pH levels between 5.4 and 8.0 (freshwater only). It lasts up to 4 times as long as competing products and is small, clear, and unobtrusive when in the tank.

    Seachem One Year Combo Alert - 1 Pack
    $22.08
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